/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "mozilla/ArrayUtils.h" #include "mozilla/EventStates.h" #include "mozilla/dom/SVGImageElement.h" #include "mozilla/gfx/2D.h" #include "nsCOMPtr.h" #include "nsIURI.h" #include "nsNetUtil.h" #include "imgINotificationObserver.h" #include "mozilla/dom/SVGImageElementBinding.h" #include "nsContentUtils.h" NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(Image) using namespace mozilla::gfx; namespace mozilla { namespace dom { JSObject* SVGImageElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) { return SVGImageElementBinding::Wrap(aCx, this, aGivenProto); } nsSVGElement::LengthInfo SVGImageElement::sLengthInfo[4] = { { &nsGkAtoms::x, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X }, { &nsGkAtoms::y, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::Y }, { &nsGkAtoms::width, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X }, { &nsGkAtoms::height, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::Y }, }; nsSVGElement::StringInfo SVGImageElement::sStringInfo[2] = { { &nsGkAtoms::href, kNameSpaceID_None, true }, { &nsGkAtoms::href, kNameSpaceID_XLink, true } }; //---------------------------------------------------------------------- // nsISupports methods NS_IMPL_ISUPPORTS_INHERITED(SVGImageElement, SVGImageElementBase, nsIDOMNode, nsIDOMElement, nsIDOMSVGElement, imgINotificationObserver, nsIImageLoadingContent, imgIOnloadBlocker) //---------------------------------------------------------------------- // Implementation SVGImageElement::SVGImageElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo) : SVGImageElementBase(aNodeInfo) { // We start out broken AddStatesSilently(NS_EVENT_STATE_BROKEN); } SVGImageElement::~SVGImageElement() { DestroyImageLoadingContent(); } //---------------------------------------------------------------------- // nsIDOMNode methods NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGImageElement) //---------------------------------------------------------------------- already_AddRefed<SVGAnimatedLength> SVGImageElement::X() { return mLengthAttributes[ATTR_X].ToDOMAnimatedLength(this); } already_AddRefed<SVGAnimatedLength> SVGImageElement::Y() { return mLengthAttributes[ATTR_Y].ToDOMAnimatedLength(this); } already_AddRefed<SVGAnimatedLength> SVGImageElement::Width() { return mLengthAttributes[ATTR_WIDTH].ToDOMAnimatedLength(this); } already_AddRefed<SVGAnimatedLength> SVGImageElement::Height() { return mLengthAttributes[ATTR_HEIGHT].ToDOMAnimatedLength(this); } already_AddRefed<DOMSVGAnimatedPreserveAspectRatio> SVGImageElement::PreserveAspectRatio() { return mPreserveAspectRatio.ToDOMAnimatedPreserveAspectRatio(this); } already_AddRefed<SVGAnimatedString> SVGImageElement::Href() { return mStringAttributes[HREF].IsExplicitlySet() ? mStringAttributes[HREF].ToDOMAnimatedString(this) : mStringAttributes[XLINK_HREF].ToDOMAnimatedString(this); } //---------------------------------------------------------------------- nsresult SVGImageElement::LoadSVGImage(bool aForce, bool aNotify) { // resolve href attribute nsCOMPtr<nsIURI> baseURI = GetBaseURI(); nsAutoString href; if (mStringAttributes[HREF].IsExplicitlySet()) { mStringAttributes[HREF].GetAnimValue(href, this); } else { mStringAttributes[XLINK_HREF].GetAnimValue(href, this); } href.Trim(" \t\n\r"); if (baseURI && !href.IsEmpty()) NS_MakeAbsoluteURI(href, href, baseURI); return LoadImage(href, aForce, aNotify, eImageLoadType_Normal); } //---------------------------------------------------------------------- // EventTarget methods: void SVGImageElement::AsyncEventRunning(AsyncEventDispatcher* aEvent) { nsImageLoadingContent::AsyncEventRunning(aEvent); } //---------------------------------------------------------------------- // nsIContent methods: nsresult SVGImageElement::AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName, const nsAttrValue* aValue, bool aNotify) { if (aName == nsGkAtoms::href && (aNamespaceID == kNameSpaceID_None || aNamespaceID == kNameSpaceID_XLink)) { // If there isn't a frame we still need to load the image in case // the frame is created later e.g. by attaching to a document. // If there is a frame then it should deal with loading as the image // url may be animated if (!GetPrimaryFrame()) { if (aValue) { LoadSVGImage(true, aNotify); } else { CancelImageRequests(aNotify); } } } return SVGImageElementBase::AfterSetAttr(aNamespaceID, aName, aValue, aNotify); } void SVGImageElement::MaybeLoadSVGImage() { if ((mStringAttributes[HREF].IsExplicitlySet() || mStringAttributes[XLINK_HREF].IsExplicitlySet()) && (NS_FAILED(LoadSVGImage(false, true)) || !LoadingEnabled())) { CancelImageRequests(true); } } nsresult SVGImageElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent, nsIContent* aBindingParent, bool aCompileEventHandlers) { nsresult rv = SVGImageElementBase::BindToTree(aDocument, aParent, aBindingParent, aCompileEventHandlers); NS_ENSURE_SUCCESS(rv, rv); nsImageLoadingContent::BindToTree(aDocument, aParent, aBindingParent, aCompileEventHandlers); if (mStringAttributes[HREF].IsExplicitlySet() || mStringAttributes[XLINK_HREF].IsExplicitlySet()) { // FIXME: Bug 660963 it would be nice if we could just have // ClearBrokenState update our state and do it fast... ClearBrokenState(); RemoveStatesSilently(NS_EVENT_STATE_BROKEN); nsContentUtils::AddScriptRunner( NewRunnableMethod(this, &SVGImageElement::MaybeLoadSVGImage)); } return rv; } void SVGImageElement::UnbindFromTree(bool aDeep, bool aNullParent) { nsImageLoadingContent::UnbindFromTree(aDeep, aNullParent); SVGImageElementBase::UnbindFromTree(aDeep, aNullParent); } EventStates SVGImageElement::IntrinsicState() const { return SVGImageElementBase::IntrinsicState() | nsImageLoadingContent::ImageState(); } NS_IMETHODIMP_(bool) SVGImageElement::IsAttributeMapped(const nsIAtom* name) const { static const MappedAttributeEntry* const map[] = { sViewportsMap, }; return FindAttributeDependence(name, map) || SVGImageElementBase::IsAttributeMapped(name); } //---------------------------------------------------------------------- // nsSVGPathGeometryElement methods /* For the purposes of the update/invalidation logic pretend to be a rectangle. */ bool SVGImageElement::GetGeometryBounds(Rect* aBounds, const StrokeOptions& aStrokeOptions, const Matrix& aToBoundsSpace, const Matrix* aToNonScalingStrokeSpace) { Rect rect; GetAnimatedLengthValues(&rect.x, &rect.y, &rect.width, &rect.height, nullptr); if (rect.IsEmpty()) { // Rendering of the element disabled rect.SetEmpty(); // Make sure width/height are zero and not negative } *aBounds = aToBoundsSpace.TransformBounds(rect); return true; } already_AddRefed<Path> SVGImageElement::BuildPath(PathBuilder* aBuilder) { // We get called in order to get bounds for this element, and for // hit-testing against it. For that we just pretend to be a rectangle. float x, y, width, height; GetAnimatedLengthValues(&x, &y, &width, &height, nullptr); if (width <= 0 || height <= 0) { return nullptr; } Rect r(x, y, width, height); aBuilder->MoveTo(r.TopLeft()); aBuilder->LineTo(r.TopRight()); aBuilder->LineTo(r.BottomRight()); aBuilder->LineTo(r.BottomLeft()); aBuilder->Close(); return aBuilder->Finish(); } //---------------------------------------------------------------------- // nsSVGElement methods /* virtual */ bool SVGImageElement::HasValidDimensions() const { return mLengthAttributes[ATTR_WIDTH].IsExplicitlySet() && mLengthAttributes[ATTR_WIDTH].GetAnimValInSpecifiedUnits() > 0 && mLengthAttributes[ATTR_HEIGHT].IsExplicitlySet() && mLengthAttributes[ATTR_HEIGHT].GetAnimValInSpecifiedUnits() > 0; } nsSVGElement::LengthAttributesInfo SVGImageElement::GetLengthInfo() { return LengthAttributesInfo(mLengthAttributes, sLengthInfo, ArrayLength(sLengthInfo)); } SVGAnimatedPreserveAspectRatio * SVGImageElement::GetPreserveAspectRatio() { return &mPreserveAspectRatio; } nsSVGElement::StringAttributesInfo SVGImageElement::GetStringInfo() { return StringAttributesInfo(mStringAttributes, sStringInfo, ArrayLength(sStringInfo)); } nsresult SVGImageElement::CopyInnerTo(Element* aDest) { if (aDest->OwnerDoc()->IsStaticDocument()) { CreateStaticImageClone(static_cast<SVGImageElement*>(aDest)); } return SVGImageElementBase::CopyInnerTo(aDest); } } // namespace dom } // namespace mozilla